75 percent of Chelsea players were brought into England from abroad, the latest issue of the CIES Football Observatory shows.
The English club is followed closely by Monaco, a club with 73 percent of their players being foreigners. Manchester City comes in at third place with 69 percent of their players being foreigners. Lazio (67.9%), Sevilla (64.3%) and Bayern Munich (54.2%).
In total, 23 teams big-5 league teams out of 98 recruited at least half of their first team players from abroad: eight in England, five in both Spain and Italy, three in Germany and two in France.
Italian side, Sassuolo, however, has no appetite for foreign footballers. The club is the only big-5 league team who signed all squad members from national clubs.